package com.example.jchuah.tiles;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.DragEvent;
import android.view.GestureDetector;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;

import java.util.ArrayList;
import java.util.Random;


public class MyActivity extends Activity implements View.OnTouchListener, View.OnDragListener, FlingDetector.FlingListener {

    int numRows = 4;
    int numCols = 4;

    TileGridLayout grid;
    Random randGen = new Random();
    FlingDetector flingDetector = new FlingDetector(this);
    GestureDetector gestureDetector;


    public void checkVictory() {

        int type3count = 0;

        for (int row = 0; row < numRows; row++){
            for (int col = 0; col < numCols; col++) {

                RowColPair p = new RowColPair();
                p.row = row;
                p.col = col;

                View theTile = grid.getTile(p);
                if (theTile.getTag().equals(R.layout.tiletype3)) {
                    type3count++;
                }

            }
        }

        if (type3count == 1) {
            //
        }
    }

    public void compareLocations(RowColPair source, RowColPair destination) {
        if (  grid.isValidRowColPair( destination  )   ) {
            View flung = grid.getTile(source);
            View target = grid.getTile(destination);

            if (flung.getTag().equals(target.getTag())) {
                // tiles are the same
                if (flung.getTag().equals(R.layout.tiletype1)) {
                    grid.removeTile(source);
                    grid.removeTile(destination);
                    grid.addTile(destination, generateTile(R.layout.tiletype2));
                }
            }
        }
    }


    public void onFlingLeft(View view) {
        RowColPair coordinate;

        coordinate = grid.getRowColumn(view);

        RowColPair leftOf = coordinate.getLeft();

        compareLocations(coordinate, leftOf);


    }


    public void onFlingRight(View view) {
        Log.d("fling event", "right");
    }

    public void onFlingUp(View view) {
        Log.d("fling event", "up");
    }

    public void onFlingDown(View view) {
        Log.d("fling event", "down");
    }

    public void generateGrid() {
        int type = 0;
        ArrayList<Integer> list = new ArrayList<Integer>();

        for (int i = 0; i < 6; i++) {
            list.add(R.layout.tiletype1);
            list.add(R.layout.tiletype2);
            list.add(R.layout.tiletype3);
        }

        for (int row = 0; row < numRows; row++){
            for (int col = 0; col < numCols; col++) {
                int id = 0;

                RowColPair p = new RowColPair();
                p.row = row;
                p.col = col;

                id = list.remove(randGen.nextInt(list.size()));


                grid.addTile(row, col, generateTile(id));

            }
        }
    }

    public View generateTile(int id) {
        View tile = getLayoutInflater()
                .inflate(id, null);
        tile.setTag(id);


        tile.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                flingDetector.touched = view;
                return gestureDetector.onTouchEvent(motionEvent);
            }
        });
        return tile;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);
        grid = (TileGridLayout)findViewById(R.id.gridView);
        generateGrid();
        gestureDetector = new GestureDetector(this, flingDetector);
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.my, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    @Override
    public boolean onDrag(View view, DragEvent dragEvent) {
        return false;
    }

    @Override
    public boolean onTouch(View view, MotionEvent motionEvent) {
        return false;
    }

}
